Target Corp.'s chief financial officer will return to Capitol Hill on Wednesday to face questions from Congress about one of the largest computer data breaches in U.S. history.

On Wednesday, CFO John Mulligan will testify before the Senate Commerce Committee about how the retail giant plans to keep consumer credit and debit card information safe in the future. Federal Trade Commission Chairwoman Edith Ramirez and Ellen Richey, Visa Inc.'s chief enterprise risk officer, are also scheduled to testify.

For Mulligan, it's a return engagement in D.C. Last month, he answered questions from the Senate Judiciary Committee and a subcommittee of the House Energy and Commerce Committee.

Since the last time Mullin appeared before Congress, Target's chief information officer has resigned and the company has come under scrutiny for allegedly missing internal warnings about malware lurking on its computer network that allowed cyber thieves to swipe credit and debit card information.

The Target data breach remains under investigation by the Secret Service and Justice Department.

U.S. Sen. Amy Klobuchar, a Commerce Committee member, will be among the senators questioning Mulligan. Klobuchar also queried him during last month's Judiciary Committee hearing.